Effects of boron on the fracture behavior and ductility of cast Ti-6Al-4V alloys

J. H. Luan, Zengbao Jiao, L. Heatherly, E. P. George, G. Chen, C. T. Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

Minor amounts of boron additions have been found to greatly enhance the ductility of cast Ti-6Al-4V alloys, which was considered to be due to the grain-size refinement. In this paper, we report our interesting finding that the beneficial effect of boron on the ductility of the cast titanium alloys is due not only to the grain-size refinement but the enhancement of the prior-β grain-boundary cohesion by boron segregation at the grain boundaries, as evidenced by Auger electron microscopy.
Original languageEnglish
Pages (from-to)90-93
Number of pages4
JournalScripta Materialia
Volume100
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes

Keywords

  • Auger electron spectroscopy
  • Ductility
  • Fracture
  • Grain boundary segregation
  • Ti-6Al-4V alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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